Alliance event Banquet not available

I am not able to clam the alliance event Banquet rewards

i have also gifted to alliance members health potions and lot but still not able to clam

Comments

the clue is in the big red warning sign

But I was in that alliance so long still it shows not available why

But I was in that alliance so long still it shows not available why

Picture indicates you did not join the alliance until AFTER the Banquet Event started (couple days ago).
So you are not eligible.

When was the exact date you joined that ally.

Before the event start

Before the event start

Best exact date ever!